Spice

Again and again, with you ~The sleeping prince is attacked by the reincarnated librarian~

Yandere oneshot smut. FL is reborn and needs semen to survive. Makes man sleep to get it but promises to stop. He reveals he was awake and wants her to resume. She was seemingly his wife and he bound their souls to get her back

Poker Face~A Political Marriage With The Crown Prince of Another World. But, I Want A Divorce~

Yandere smut. FL is noble lady marriied to Prince, who acts happy but seems cold. Expects divorce but he takes her at night often. As she wants to leave, he restrains and takes her. They confess their feelings

Very good

The Magician's Favorite ~Bad Ending Reincarnation of the Villainous Lady, Captured by the Chamberlain Who Was Supposed to Be Her Nemesis~

Yandere smut oneshot. Reincarnated as Villainess and her slave servant becomes obsessed since she was kind from childhood. Saves her from kidnapping and takes her to dissolve her engagement.

The Up & Coming Marquis Will Not Accept Her Resignation /

Dubcon smut with hints of yandere. FL is maid and illegitimate daughter. She doesn't trust master as he claims to love her even as he makes her undress and starts to touch her. She struggles for a while as her stepmother causes trouble but the believes that she will not be used

Doumeki-sama, who hates humans, wants to see everything about the sacrificial girl.

Yandere oneshot smut. Good one.
FL is sent as sacrificial gift and stays with God with many eyes. He is obsessed and can use tentacles. Thinks she only slept with him for village first but she tells him she loves him. Calls her wife and wants to make her immortal

When I was reincarnated as a villain witch, it was the attachment route of the younger knight.

Yandere oneshot smut. Good one.
FL is witch in forest and knight appears. He doesn't kill her though but pushes her onto bed. Dub on first but she later fakes his death to keep him safe